/***********************************************************************************************************************
*                                                                                                                      *
* SPLASH build system v0.1                                                                                             *
*                                                                                                                      *
* Copyright (c) 2013 Andrew D. Zonenberg                                                                               *
* All rights reserved.                                                                                                 *
*                                                                                                                      *
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the     *
* following conditions are met:                                                                                        *
*                                                                                                                      *
*    * Redistributions of source code must retain the above copyright notice, this list of conditions, and the         *
*      following disclaimer.                                                                                           *
*                                                                                                                      *
*    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the       *
*      following disclaimer in the documentation and/or other materials provided with the distribution.                *
*                                                                                                                      *
*    * Neither the name of the author nor the names of any contributors may be used to endorse or promote products     *
*      derived from this software without specific prior written permission.                                           *
*                                                                                                                      *
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED   *
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL *
* THE AUTHORS BE HELD LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES        *
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR       *
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE       *
* POSSIBILITY OF SUCH DAMAGE.                                                                                          *
*                                                                                                                      *
***********************************************************************************************************************/

#include "splashcore.h"

using namespace std;

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Construction / destruction
CppConfigHeaderNode::CppConfigHeaderNode(BuildGraph* graph, string name, string arch)
	: CppGeneratedSourceNode(graph, graph->GetMetaDir() + "/include/" + arch + "-" + name, arch)
	, m_name(name)
	, m_arch(arch)
{
}

CppConfigHeaderNode::~CppConfigHeaderNode()
{
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Accessors


string CppConfigHeaderNode::GetFileName()
{
	return GetOutputPath();
}

string CppConfigHeaderNode::GetOutputPath()
{
	return m_graph->GetOutDir() + "/" + m_arch + "/include/" + m_name;
}

string CppConfigHeaderNode::GetBinaryPath()
{
	return GetOutputPath();
}
	
void CppConfigHeaderNode::AddSetting(string name, string value)
{
	m_settings[name] = value;
}

string CppConfigHeaderNode::GetHash()
{
	string settings;
	for(map<string, string>::iterator it=m_settings.begin(); it!=m_settings.end(); it++)
		settings += sha256(it->first + "=" + it->second);
	settings += sha256(m_arch);
	return sha256(settings);
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Code generation

void CppConfigHeaderNode::Update(Cluster* /*cluster*/)
{
	//TODO: caching etc, for now just write directly to the include directory
	
	//Generate the output file
	DebugPrintfHeading(2, "Generating configuration header %s\n", m_name.c_str());
	MakeDirectoryRecursive(GetDirOfFile(GetOutputPath()), 0755);
	FILE* fp = fopen(GetFileName().c_str(), "w");
	if(!fp)
		FatalError("Could not open configuration header \"%s\" for writing\n", m_name.c_str());
	
	//Write the output
	fprintf(fp, "//Automatically generated by CppConfigHeaderNode\n//DO NOT EDIT\n");
	for(map<string, string>::iterator it=m_settings.begin(); it!=m_settings.end(); it++)
		fprintf(fp, "#define %s %s\n", it->first.c_str(), it->second.c_str());
	fclose(fp);
}

void CppConfigHeaderNode::UpdateDependencies()
{
	//no dependencies, no action required
}
